TELEVAC 2A VacuMini Thermocouple Vacuum Sensor

The TELEVAC VacuMini is a commercial version of TELEVAC’s highly successful NASA 2A sensor. VacuMini uses the same principle of operation as all TELEVAC type 2A thermocouple sensors. It is roughly half the size and volume of traditional vacuum thermocouple sensors.

A machined 304 stainless body is designed with 1/8” NPT connection threads and integral wrench flats for ease of installation. Unlike traditional vacuum thermocouple sensors that have exposed electrical pins, VacuMini’s pins are protected in two ways. They are recessed within the sensor body diameter, and a tethered and gasketed military-type screw-on weather cap isolates the pins from moisture and dirt. The VacuMini will operate in any physical orientation. We do suggest you consider using one of our filters in the event your vacuum vessel or process contains excessive particulates or contaminates.

The TELEVAC 2A VacuMini Features

  • Compact size: Approximately 2” long x 1/2” diameter
  • Rugged 304 stainless steel construction
  • Standard connection interface is 1/8” NPT
  • Weather Cap: Military type, gasketed and tethered
  • Sensor operates in any physical orientation
  • Rugged and simple design for trouble-free operation
  • Low cost


Range1 mTorr to 20 Torr (1 μ to 20,000 μ)
Body Material304 series stainless steel
Vacuum Connection1/8” NPT
Leak Rate1 × 10-9 std. cc/s (He) or less
Overpressure Rating100 psig

Analog Output Behavior



VacuMini 2A Sensor2-2100-102
Sensor Cable, Coiled, 10’ Extended Length2-9800-082
VacuGuard Instrument2-3001-102

The VacuMini is ideally suited to applications where the vacuum vessel is located outdoors or in a physical environment that renders use of traditional thermocouple sensors impractical. Examples of such applications include:

  • Fixed and mobile bulk cryogenic storage and transport vessels
  • Vacuum jacketed gas delivery manifolds
  • Mechanical vacuum pumps and blowers
  • House vacuum systems